Reproductive Immunology and Implantation Failure Unit

Tambre is the first Spanish Assisted Reproduction clinic to incorporate a Reproductive Immunology Unit. This service has been mainly dedicated to the study of embryo implantation failure. In addition, working together with prestigious hospitals and researchers, it has opened multiple avenues of research to put an end to situations such as recurrent miscarriage or implantation failure of unknown cause.

What does this unit consist of?

It is in the Reproductive Immunology Unit where each case of infertility which connects to the immune system is studied, evaluated and treated. A complete profile of immunological factors related to primary infertility, implantation failure after in vitro fertilisation (IVF), repeated miscarriages and pre-eclampsia or eclampsia in pregnancy is performed.




Pregnancy is a very unusual situation from an immunological point of view. Our defence system, which usually protects the organism against cells foreign to it or against its own altered cells, does not consider the cells of the embryo as a hostile organism even though the embryo has a different immune system. This occurs because our uterus has a specific immunity that allows embryo implantation.

Occasionally, this process of local inactivation of the immune system does not occur correctly and causes implantation failure. This means that in the end, the desired pregnancy is not achieved. This complication appears even in women with good quality embryos and apparently problem-free endometrium. And, in most cases, there is an effective treatment that helps increase the likelihood of pregnancy.

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